package com.heima.search.service.impl;

import com.heima.common.exception.CustException;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.search.dtos.UserSearchDTO;
import com.heima.model.search.pojos.ApAssociateWords;
import com.heima.search.service.ApAssociateWordsService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
@Slf4j
public class ApAssociateWordsServiceImpl implements ApAssociateWordsService {

    @Autowired
    MongoTemplate mongoTemplate;

    /**
     * 联想词
     * @param dto
     * @return
     */
    @Override
    public ResponseResult findAssociate(UserSearchDTO dto) {
        //1 参数检查
        if (StringUtils.isBlank(dto.getSearchWords())) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID);
        }

        //2 执行查询 模糊查询
        List<ApAssociateWords> apAssociateWordsList = mongoTemplate.find(Query.query(Criteria
                .where("associateWords").regex(".*" + dto.getSearchWords() + ".*")), ApAssociateWords.class);
        //返回最终结果
        return ResponseResult.okResult(apAssociateWordsList);
    }
}